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Selected:ATAM (Architecture Tradeoff Analysis Method)CATWOE AnalysisArchitecture Communication CanvasC4 Model
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Systems Thinking CATWOE Analysis |  Architecture Architecture Communication Canvas |  Architecture C4 Model |
|---|---|---|---|---|
Purposedifferent | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. |
Complexitydifferent | High | Medium | Medium | Low |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 45-90 min | 60-120 min | 1-4 h |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-8 | 2-8 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Communication Canvas, Stakeholder Messages, Architecture Communication Plan | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | Systems thinkingFramingStakeholders | ArchitectureCommunicationStakeholdersCanvas | ArchitectureCommunicationVisualization |